Photosensitive resin composition, and photosensitive resin film and color filter manufactured by using same

Abstract

Provided are a photosensitive resin composition, a photosensitive resin film manufactured by using the photosensitive resin composition, and a color filter including same, the photosensitive resin composition including: (A) a binder resin; (B) a colorant; (C) a polymerizable compound; (D) an initiator comprising a photopolymerization initiator and a thermal polymerization initiator; and (E) a solvent, wherein the thermal polymerization initiator has a half-life of 50 or less (t½ = 10 h), and the thermal polymerization initiator is included in an amount equal to or greater than that of the photopolymerization initiator.

1 . A photosensitive resin composition, comprising
 (A) a binder resin;   (B) a colorant;   (C) a polymerizable compound;   (D) an initiator including a photopolymerization initiator and a thermal polymerization initiator; and   (E) a solvent,
 wherein the thermal polymerization initiator has a half-life of 50 or less (t½ = 10 h), and 
 wherein the thermal polymerization initiator is included in an amount equal to or greater than that of the photopolymerization initiator. 
   
     
     
         2 . The photosensitive resin composition of  claim 1 , wherein the thermal polymerization initiator is a peroxide-based compound. 
     
     
         3 . The photosensitive resin composition of  claim 2 , wherein the thermal polymerization initiator includes a peroxydicarbonate-based compound, a peroxyester-based compound, or a combination thereof. 
     
     
         4 . The photosensitive resin composition of  claim 1 , wherein the thermal polymerization initiator is included in an amount of 1 wt% to 2 wt% based on a total weight of the photosensitive resin composition. 
     
     
         5 . The photosensitive resin composition of  claim 1 , wherein the colorant includes a pigment, a dye, or a combination thereof. 
     
     
         6 . The photosensitive resin composition of  claim 5 , wherein:
 the colorant includes the dye, and   the dye includes a phthalocyanine-based compound.   
     
     
         7 . The photosensitive resin composition of  claim 6 , wherein the colorant further includes the pigment, and the dye is included in an amount greater than that of the pigment. 
     
     
         8 . The photosensitive resin composition of  claim 1 , wherein the binder resin includes an acryl-based binder resin, a cardo-based binder resin, or a combination thereof. 
     
     
         9 . The photosensitive resin composition of  claim 8 , wherein the acryl-based binder resin and cardo-based binder resin are included in a weight ratio of 1:1. 
     
     
         10 . The photosensitive resin composition of  claim 1 , wherein the polymerizable compound includes a photopolymerizable compound and a thermally polymerizable compound. 
     
     
         11 . The photosensitive resin composition of  claim 10 , wherein the photopolymerizable compound and the thermally polymerizable compound are included in a weight ratio of 1:1. 
     
     
         12 . The photosensitive resin composition of  claim 1 , wherein the photosensitive resin composition includes
 1 wt% to 10 wt% of the (A) binder resin;   50 wt% to 80 wt% of the (B) colorant;   1 wt% to 10 wt% of the (C) polymerizable compound;   1.1 wt% to 5 wt% of the (D) initiator; and   the (E) solvent,   based on a total weight of the photosensitive resin composition.   
     
     
         13 . The photosensitive resin composition of  claim 1 , wherein the photosensitive resin composition further includes malonic acid; 3-amino-1,2-propanediol; a coupling agent; a leveling agent; or a surfactant. 
     
     
         14 . A photosensitive resin film manufactured using the photosensitive resin composition of  claim 1 . 
     
     
         15 . A color filter comprising the photosensitive resin film of  claim 14 .